public ActionResult LogOn(LogOnModel model, string returnUrl)
        {
            if (ModelState.IsValid)
            {
                if (this.userProcessor.LogOnUser(model.UserName, model.Password))
                {
                    FormsAuthentication.SetAuthCookie(model.UserName, true);
                    this.userProcessor.SetRoleToUserFromDB(model.UserName);
                    if (Url.IsLocalUrl(returnUrl) && returnUrl.Length > 1 && returnUrl.StartsWith("/")
                        && !returnUrl.StartsWith("//") && !returnUrl.StartsWith("/\\"))
                    {
                        return this.Redirect(returnUrl);
                    }
                    else
                    {
                        return this.RedirectToAction("Index", "Landing");
                    }
                }
                else
                {
                    ModelState.AddModelError(string.Empty, "Incorrect email or password!");
                }
            }

            return this.View(model);
        }